IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0246988
(2011-09-28)
|
등록번호 |
US-8813783
(2014-08-26)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Norgren GT Development Corporation
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
6 |
초록
▼
A valve (103) is provided. The valve (103) comprises a housing (104) defining an internal bore (209) and a plurality of fluid ports (107a, 107b, 108a, 108b). The valve (103) further comprises a rotatable spool (210) positioned within the internal bore (209) and rotatable about a longitudinal axis (X
A valve (103) is provided. The valve (103) comprises a housing (104) defining an internal bore (209) and a plurality of fluid ports (107a, 107b, 108a, 108b). The valve (103) further comprises a rotatable spool (210) positioned within the internal bore (209) and rotatable about a longitudinal axis (X-X). A first canted seal (217) is provided that is positioned on the rotatable spool (210) at an angle (θ) with respect to the longitudinal axis (X-X). A second canted seal (218) is also provided that is positioned on the rotatable spool (210) at an angle (α) with respect to the longitudinal axis (X-X).
대표청구항
▼
1. A valve (103), comprising: a housing (104) defining an internal bore (209) and plurality of fluid ports (107a, 107b, 108a, 108b);a rotatable spool (210) positioned within the internal bore (209) and rotatable about a longitudinal axis (X-X) wherein the internal bore (209) comprises three or more
1. A valve (103), comprising: a housing (104) defining an internal bore (209) and plurality of fluid ports (107a, 107b, 108a, 108b);a rotatable spool (210) positioned within the internal bore (209) and rotatable about a longitudinal axis (X-X) wherein the internal bore (209) comprises three or more cross-sectional diameters (D1, D2, D3), and wherein the entire first canted seal (217) is positioned within a portion of the internal bore (209) comprising a single cross-sectional diameter when the first fluid port (107a) is sealed off from the second fluid port (107b) and wherein the entire second canted seal (218) is positioned within a portion of the internal bore (209) comprising a single cross-sectional diameter when the third fluid port (108a) is sealed off from the fourth fluid port (108b) and wherein transitional sections between the cross-sectional diameters (D1, D2, D3) are at least partially rounded off at an intersection of a port and the internal bore (209);a first canted seal (217) positioned on the rotatable spool (210) at an angle (e) with respect to the longitudinal axis (X-X); anda second canted seal (218) positioned on the rotatable spool (210) at an angle (˜) with respect to the longitudinal axis (X-X). 2. The valve (103) of claim 1, wherein the first canted seal (217) is positioned to selectively seal a first fluid port (107a) off from a second fluid port (107b) and wherein the second canted seal (218) is positioned to selectively seal a third fluid port (108a) off from a fourth fluid port (108b). 3. The valve (103) of claim 1, wherein the angle (θ) of the first canted seal (217) is between approximately 5° and approximately 55°. 4. The valve (103) of claim 1, wherein the angle (α) of the second canted seal (217) is between approximately 5° and approximately 55°. 5. The valve (103) of claim 1, further comprising a handle (105) coupled to a portion of the rotatable spool (210) extending from the housing (104). 6. The valve (103) of claim 4, wherein the handle (105) comprises one or more tabs (206) sized and positioned to contact a handle stop (106) extending from the housing (106) when the rotatable spool (210) is in one or more predetermined positions. 7. The valve (103) of claim 1, further comprising a first fluid chamber (227) in fluid communication with a first fluid port (107a) and a second fluid port (107b) when the rotatable spool (210) is in a first position. 8. The valve (103) of claim 1, further comprising a second fluid chamber (228) in fluid communication with a third fluid port (108a) and a fourth fluid port (108b) when the rotatable spool (210) is in a first position. 9. A method for forming a valve, comprising steps of: positioning a first canted seal on a spool at a first angle with respect to a longitudinal axis of the spool;positioning a second canted seal on the spool at a second angle with respect to the longitudinal axis of the spool; andpositioning the spool in a housing such that the spool can rotate within the housing about the longitudinal axis to selectively control a fluid flow through a plurality of fluid ports using the first and second canted seals, wherein:the step of positioning the spool comprises inserting the spool into an internal bore formed by the housing that comprises three or more cross-sectional diameters; andwherein transitional sections between the cross-sectional diameters at least partially round off at an intersection of a port and the internal bore. 10. The method of claim 9, wherein the step of positioning the spool comprises positioning the spool to selectively seal a first fluid port off from a second fluid port with the first canted seal and selectively seal a third fluid port off from a fourth fluid port with the second canted seal. 11. The method of claim 9, wherein the angle of the first canted seal is between approximately 5° and approximately 55°. 12. The method of claim 9, wherein the angle of the second canted seal is between approximately 5° and approximately 55°. 13. The method of claim 9, further comprising a step of coupling a handle to a portion of the spool that extends from the housing. 14. The method of claim 13, further comprising a step of forming one or more tabs on the handle that are sized and positioned to contact a handle stop extending from the housing when the spool is in one more predetermined positions. 15. A method for controlling a fluid through a valve, comprising a step of: rotating a rotatable spool about a longitudinal axis to a first position to selectively control a fluid flow through a first and a second fluid port with a first canted seal positioned on the rotatable spool at a first angle with respect to the longitudinal axis and to selectively control a fluid flow through a third fluid port and a fourth fluid port with a second canted seal positioned on the rotatable spool at a second angle, different from the first angle, with respect to the longitudinal axis, wherein the first fluid port exclusively fluidly communicates with the second fluid port, wherein the third fluid port exclusively fluidly communicates with the fourth fluid port, and wherein the first canted seal opens a fluid flow path between the first and second fluid ports when the rotatable spool is in the first position and wherein the second canted seal opens a fluid flow path between the third and fourth fluid ports when the rotatable spool is in the first position; androtating the rotatable spool to a second position to close the fluid flow path between the first and second fluid ports and to close the fluid flow path between the third fluid and fourth fluid ports. 16. The valve (103) of claim 1, wherein the angle (θ) is approximately 90° to the angle (α). 17. The method of claim 9, wherein the first angle is approximately 90° to the second angle. 18. The method for controlling a fluid through a valve of claim 15, wherein the first angle is approximately 90° to the second angle.
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